Hull of vessels



(No Model.)

D. BAINBRIYDGE.

HULL 0P VESSBLS. No. 272,621. Patent-e d-Feb.20,188'3.

' UNITED STATES PATENT ()FFICE.

DAVID BAINBRIDGE, OF PHILADELPHIA, PENNSYLVANIA.

HULL OF VESSELS.

SPECIFICATION forming part of Letters Patent No. 272,621, dated February 20, 1883.

Application filed November 9, 1882. (No model.)

To all whom it may concern:

Be it known that I, DAVID BAINBRIDGE, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented an Improvement in the Construction of Vessels, of which the following is a specification.

The object of my invention is to so construct the hull of a vessel that as it is driven through the water there will be a tendency to lift the vessel bodily, and thus cause less displacement of water than when the hull is constructed as usual.

In the accompanying drawings, Figure 1 is a side View of a vessel constructed in accordance with my invention; Fig. 2, a diagram showing the transverse shape of the hull at the line a: .r, Fig. 3, a similar diagram taken at the line 3 y; Fig. 4, a diagram taken at the line to w; and Fig. 5 a side view ot'a modified form of the improved vessel.

An ordinary vessel, when driven at high speed through the water, has a tendency to settle at the stern as the bow is lifted by the action of the water upon the wedge -shaped forward end of the hall. I propose to impart a lift to the entire hull from stem to stern, and thus decrease the displacement of water and permit a higher rate of speed. with the same power than is attained with vessels as now constructed. This object I attain by forming on each side of the hull an inclined plane,'a, extending to the stern from the point ofgreatest width at or near amidships,and from about the water-line to the keel, as shown in Fig.1. The preferable plan of forming this inclined plane is that shown in Figs. 1 to-4, on referthereby decreasing the extent of submerged hull and lessening the displacement of water,

so thatthe vessel can with the same power bedriven at a higher speed than a vessel constructed us u ual. 4

The inclined planes may bemade in the form of an inclined rib on each side of the hull, as shown in Fig.5; but the plan shown in Figs.1 to 4 is preferred. 7

I claim as my inventiou--.

The within-described vessel, each side of the hull of which is constructed, as described, so as to present an inclined plane, at, extending rearward or downward from amidships or the point of greatest Width of the hull, whereby said plane is caused to exert a lifting influence as the vessel is driven forward, as set forth.

In testimony whereofl have signed my name to this specification in the presence of two subscribing witnesses.

DAVID BAINBRIDGE.

\Vitnesses HARRY DRURY, HARRY SMITH. 

